目的 确定新燃料运输容器设计准则和容器主体方案，研究容器的接口要求和结构形式，完成新燃料运输容器安全分析，使容器能保证新燃料组件的运输安全。方法 在研究新燃料运输容器设计准则的基础上，结合法规和用户的要求，为使容器结构保证正常运输条件和运输事故条件下新燃料运输的安全，容器设置了阶梯吸能结构和泡沫铝材料大量吸收冲击和振动能量;容器设计了阻燃隔热结构保证容器在火烧事故条件下内容物的安全，设置了合适的吊篮结构保证组件的临界安全，设置了弹性缓冲结构保证燃料组件在常规运输条件下满足加速度要求。结果 完成新燃料运输容器结构的研究，通过容器力学、热工、临界、屏蔽分析，表明了容器结构设计的合理性。结论 保证了运输新燃料组件处于次临界状态，符合容器的设计准则。

The work aims to select fresh fuel transportation cask design criteria, determinate the main structure of the cask, study the interface requirements and structural forms of the cask, complete the cask safety analysis, and ensure the safety of fresh fuel transportation. Based on the research of fresh fuel transportation cask design criteria, combined with regulations and user requirements, in order to ensure the safety of fresh fuel transportation under normal transportation conditions and accident conditions during transportation, the cask was equipped with multi-cushioning structures, formed aluminum and other parts that could absorb a lot of impact and vibration energy. The cask was designed with flame-retardant and heat insulation structure to ensure the safety of the contents of the cask under fire accident conditions. The appropriated loading space was designed to ensure the critical safety of the assembly, and the flexible structure was set to ensure the acceleration of the contents of the cask under routine transportation conditions. The study on fresh fuel transport cask structure was finished. The structural design rationality of the cask was indicated by analyzing cask mechanics, thermal engineering, criticality, and shielding. The transport fresh fuel is maintained subcritical. The cask design criteria is met.